[daniel@hewlett-purrp ~]$ sipcalc 73.39.59.22/23
-[ipv4 : 73.39.59.22/23] - 0

[CIDR]
Host address		- 73.39.59.22
Host address (decimal)	- 1227307798
Host address (hex)	- 49273B16
Network address		- 73.39.58.0
Network mask		- 255.255.254.0
Network mask (bits)	- 23
Network mask (hex)	- FFFFFE00
Broadcast address	- 73.39.59.255
Cisco wildcard		- 0.0.1.255
Addresses in network	- 512
Network range		- 73.39.58.0 - 73.39.59.255
Usable range		- 73.39.58.1 - 73.39.59.254